79543725 has 24 divisors (see below), whose sum is σ = 134000352. Its totient is φ = 41620800.

The previous prime is 79543703. The next prime is 79543733. The reversal of 79543725 is 52734597.

It is not a de Polignac number, because 79543725 - 2⁸ = 79543469 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6031 + ... + 13980.

It is an arithmetic number, because the mean of its divisors is an integer number (5583348).

Almost surely, 2^79543725 is an apocalyptic number.

79543725 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

79543725 is a deficient number, since it is larger than the sum of its proper divisors (54456627).

79543725 is a wasteful number, since it uses less digits than its factorization.

79543725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20077 (or 20072 counting only the distinct ones).

The product of its digits is 264600, while the sum is 42.

The square root of 79543725 is about 8918.7288892532. The cubic root of 79543725 is about 430.0661967675.

The spelling of 79543725 in words is "seventy-nine million, five hundred forty-three thousand, seven hundred twenty-five".